El ektronenrel ai s 



75 



Empfang, Hör- 



-relais electron relay, thermionic 

 r. -rümpf core, kernel, stable 

 electron group, -schalen, beinahe 

 geschlossene nearly closed elec- 

 tron shells. -Schleuder electron 

 gun. -Schwingungen electron 

 oscillations, -spr itze electron 

 gun. -sprungspektrum electron 

 transition (or jump) spectrum. 

 -Stauung electron cloud or ac- 

 cumulation (in a virtual cathode). 



Elektronenstrahl, gaskonzentrierter 

 gas-focused electron beam. 

 - , geschwind! gkei ts- gesteuerter 

 velocity-modulated electron beam. 

 -.weisser heterogen t.ous beam. 



Elektronen-strahl abtaster electron 

 scanning pencil, beam, ^ot. 

 brush or lever, -strahlengang 

 electron ray path, strahl röhre 

 (cf Kathodenstr. ) cathode-ray 

 tube: beam tube; thermionic t. 

 (obs); c. -r. tuning indicator t. 

 -Strommodulation electron quanti- 

 ty modulation, -tanz oscillatory 

 movements of electrons (due to 

 magnetic or electric forces). 

 -turbine cyclotron and inverted 

 (or Hollmann) forms thereof. 

 -technik electronic art or techno- 

 logy, electronics, -iibergangswahr- 

 scheinl ichkei t transition proba- 

 bility (of electron passing from 

 one level to another level). 

 -überhol ungsgebiet catchup orover- 

 take region (in which electrons 

 arrange themselves in groups for 

 phase focusing in beam tubes). 

 -überkreuzungsstelle crossover of 

 electrons (where principal rays 

 from first lens cross axis, equiv- 

 alent to exit pupil of eye). 

 -Übermikroskop electronic super 

 microscope, e. ultra microscope. 

 -unterhülle sub-shell (of elec- 

 trons), -welle electron wave, 

 phase w. , de Broglie w. -wölke 

 cloud of electrons. — Eigenab- 

 stossung der r'epelling action of 

 electron charge, negative ^ace 

 charge, -wucht collision force. 



bombardment f. (of electrons). 

 -zustand, entarteter degenerate 

 electron state. 



Elektroniker electronician, elec- 

 tronics engineer. 



el ektro-opti scher Verschluss electro- 

 optic shutter. 



Elektrophoresezel le electrophoresis 

 cell. 



elektrostatisch geschirmt electro- 

 statically shielded, e. screened. 

 -(er) Lautsprecher electrostatic 

 loudspeaker, condenser 1. , capaci- 

 tor 1. 



Element, Lager- inert cell. -Raster- 

 picture unit, p. element, ele- 

 mentary area. 5chalt- circuit 

 element, c. means. Strecken- 

 linear element (math.). 



El ementar-1 adung elementary charge, 

 electronic c. -wellen Huygens 

 wavelets, -zelle unit cell, ele- 

 mentary c. , lattice unit. 



Elementenmessung stoichiometry. 



Emanation, abgeklungene emanation 

 with diminished or decaying radio- 

 activity. Aktinium- actinon. 

 Radium- radon. Thorium- thoron. 



Emanationseinheit, Radium- curie 

 unit of radon or radium emanation 

 (10~^° curie-liter = eman. ). 



Emission, glühelektrische thermionic 

 emission. Autoelektronen- auto- 

 electronic, cold or field emission 

 of electrons. 



Emissions-strom, Feld- field emission 

 of electrons, cold e. -vermögen 

 emissivity, emission power. 



EMK (elektromotorische Kraft) emf 

 (electromotive force). 



EMK von rechteckiger Kurvenform 

 square- shaped or rectangular emf, 

 square- topped emf. 



Empfang, Block- block reception, com- 

 munal or party r. Druck- tele- 

 script reception, typed r. , tele- 

 printing r. Einquell- solodyne 

 reception. Geradeaus- single- 

 circuit reception, non- heterodyne 

 r. , straightahead r. Hör- audible 

 reception, auditory r. , aural r. , 



